# Instanton operators and symmetry enhancement in 5D supersymmetric gauge theories

Progress of Theoretical and Experimental Physics, Apr 2015

Supersymmetric gauge theories in five dimensions often exhibit less symmetry than the ultraviolet fixed points from which they flow. The fixed points might have larger flavor symmetry or they might even be secretly 6D theories on $S^{1}$. Here we provide a simple criterion when such symmetry enhancement in the ultraviolet should occur, by a direct study of the fermionic zero modes around one-instanton operators.

This is a preview of a remote PDF: http://ptep.oxfordjournals.org/content/2015/4/043B06.full.pdf

Yuji Tachikawa. Instanton operators and symmetry enhancement in 5D supersymmetric gauge theories, Progress of Theoretical and Experimental Physics, 2015, DOI: 10.1093/ptep/ptv040